Her first rate was faster. The 10 minutes with a change in elevation of -200ft.
In order to solve this you need to have the same minutes. In this problem, I just simply took the 10 minutes and the -200ft and doubled it. Now both rates have 20 minutes. The first rate would have gone -400ft in 20 minutes while the second rate was only -300ft in 20 minutes. I hope this wasn't confusing, and I'm willing to explain more.
Answer:
7/9 = 42/n.
7n = 378,
n = 54.
Step-by-step explanation:
Answer:
8 quaters 3 nickels
Step-by-step explanation:
Answer:
3a + 18
Step-by-step explanation: